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<b>35-Spline Upgrade</b><br>Want stronger 35-spline stub shafts for your Super Duty? Off Road Unlimited has developed a conversion kit that gives you 1 1/2-inch-diameter outers and a set of modified unit-bearing hubs to replace the stock 30-spline stuff. This kit works with the common Warn 35-spline locking hubs and is an easy bolt-on. By the time you read this, ORU should also have a live spindle conversion that will convert your Super Duty to conventional spindles and 35-spline outers.